The 2dF Galaxy Redshift Survey: Final Data Release
Matthew Colless, Bruce A. Peterson, Carole Jackson, John A. Peacock,, Shaun Cole, Peder Norberg, Ivan K. Baldry, Carlton M. Baugh, Joss, Bland-Hawthorn, Terry Bridges, Russell Cannon, Chris Collins, Warrick Couch,, Nicholas Cross, Gavin Dalton, Roberto De Propris
TL;DR
This paper announces the final data release of the 2dF Galaxy Redshift Survey, providing spectra and redshifts for over 220,000 galaxies, covering 1500 square degrees, and offering a valuable resource for cosmological research.
Contribution
It presents the complete dataset and documentation of the 2dFGRS final release, expanding upon previous initial data releases with a larger, more comprehensive galaxy catalog.
Findings
Spectra for 245,591 sources obtained
Reliable redshifts for 221,414 galaxies
Coverage of 1500 square degrees across three regions
Abstract
The 2dF Galaxy Redshift Survey (2dFGRS) has obtained spectra for 245591 sources, mainly galaxies, brighter than a nominal extinction-corrected magnitude limit of b_J=19.45. Reliable redshifts were measured for 221414 galaxies. The galaxies are selected from the extended APM Galaxy Survey and cover an area of approximately 1500 square degrees in three regions: an NGP strip, an SGP strip and random fields scattered around the SGP strip. This paper describes the 2dFGRS final data release of 30 June 2003 and complements Colless et al. (2001), which described the survey and the initial 100k data release. The 2dFGRS database and full documentation are available on the WWW at http://www.mso.anu.edu.au/2dFGRS/
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Taxonomy
TopicsAstronomy and Astrophysical Research · Galaxies: Formation, Evolution, Phenomena · Scientific Research and Discoveries